Finding the Fourth Proportional to 147,012.16, 202,811.28 and 97,964.80
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Solution
The fourth proportional to 147,012.16, 202,811.28 and 97,964.80 is: 135,147.78
Step by Step Solution
- Step 1: Write the proportion equation
147,012.16 : 202,811.28 = 97,964.80 : x - Step 2: Convert to fraction form
147,012.16/202,811.28 = 97,964.80/x - Step 3: Cross multiply
147,012.16x = 202,811.28 × 97,964.80 - Step 4: Simplify right side
147,012.16x = 19,868,366,482.94 - Step 5: Solve for x
x = 19,868,366,482.94/147,012.16 - Step 6: Final answer
x = 135,147.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.